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E. A. WATSON.

. CONDENSER FOR IGNITION MAGNETOS.

APPLICATION FILED JUNE5- 1 8.-

1 307,716. Patented June 24, 1919.

1 j "x C d Z O E ll- 5 G k 0 i a? E) l @J 2 I Fig.1

INVtNTOR BY- a v ATTORNEY mime STATES PATENT oi meei ERNEQT ANSIQEY 'WATSUN, 01E CQVESI NTQZZ, ENGLLEQ'E, ASSIGHOB TO THE M-L MAGNETO SYNDICATE EIIMZTED. O1? CGVENTRY, EHQLAN'D.

CD11 EWSEB FOR- IGN'iTIDN-JEAGIIETOS.

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Specification oflietter" Eatentf Appfieefion filed Inna 1918. Serial Kc. 238,302.

Q all whom it may oonaem:

' SJN, resieiing at Victoria Vorks, Nest 01"- share, Coven'iey, in ihe county of Wen Wick Engienrheubjeet of the King of Great Britain Imiend, heve invented; certain new anti usezmi Improvements Relating to Condensers my Igmtion-Megnebos, of wiiich the ioiiowing is e, specification.

This inventieii has for its object to provide a condenser of improveoi oonetmetion for ignition magnetoe of the rotary wound armature type. With the. ordinary constriiction diificulty is sometimes founsi in effecting e secure mounting of the condenser in the usuei condenser box at one end oif'the armature, and pertieuiwciy when the armetnre is "run at high speeds or is subject to vibration. By fihis invention a rigid and dumbie mounting is obtained in a very simple manner.

The invention comprises the arrangement of the eieernete conducting sheets to projeei; beyond the insulating eheets et a- 138i? of eci es which are at right angles {or alter- Sheets projecting tion of one set of memhiiieeieomi-the verticel dotteoi iines 7) that oi the-0th"? sheets.

In other wol ds oiie metal sheet projeeis at bothencis' beyond one eppom'te pair of edges of the mica, While the nexbprojeote e4; both ends beyond the other opposite pair of eeiges of the mice. This order is then continued so that one sei; of i L lie in one direction moi the iii 9e die set in the direction at right anglesv 1c ,Wiii be understood that the two sets of memi sheets are msuiated by the B11691. it is .201; ee-

beyond the nice, projection at one emi being sufiioient, although it is 3i convenient to provide for projection at both ends. E'referebiy the mice sheets a ELEG- of square or rectum-flier form. The mefai i i'om the si ie of-ehe mice strips are folded into I eozoieci; anci along each of 2,: pair of opposite edges :1 metal clip d is slipped over the pile to hold the verbs together. Aroumi eiie oflie pair of ecigos e-metei band is secured. Tiiisband eonsisiie of emmiuipezeiz erreeeesegi to takeithe netiveiy she alternate conducting sheets are epeseci et fi' ilil angles to the other sheets wien iioisii s projecting beyond, the ill?- suieting strips), and the employment of metei oiips at a air of opposite edges of the condenser rich are adapted to. be pressed tightly inuo contact with a pair of pemiieisiiies of the condenser box, sufiioient clearance being pevideri in the box to eccommoc'iate a band or its equivalent embreeiug the other pair of edges of coniensei" am}. having s'she iiisiiieteri iermi mi of the Contact breeiie iiiiiiiOilQCi thereto.

Referring to the accompanying sheei; of explanatory dreWings:-

Figure 1 is a rear eieva'tion o1 a, con denser box fitted with coiecienser eonseruoi'ezi in eccorence with this invention,

Figs. 2 and 321% respectively cross sections on the lines 1. 2. and 3. is (Fig. 1).

in carrying the invention into effect: as shown, the layers or sheets of tinfoil eye interposed with layers or sheets of mice or paper, the alternate met-e1 sheets being orreiigeci at right angies to the others and with nds projecting beyond the mice. In Fig. 1 the horizontai pair of dotted lines 0: indicate diegreimnatieeiiy the posieomienwr and formed on its rear side with an internally screwed boss or the like for the connection thereto of the usu'ei central screw 0 of they meet breaker; Tie band is completed bye Emmi piece 9' seouredrto the pan: e-b'y screws h. the ZLTtS e and g is oiampegi metei' strip z on which are formed em. pieces 3' 01 eiataehment thereto of the ermatu e Wires. By means of the band the eomienser components are securefi tightiy together.

The eoneieziser box is formed, inieimeily with a pair of gazelle} side cheeks Z between whiczithe ciigos 63 above men-times} can. be tightly inserted. Ajeeeni; to The other edges of the condenser aroma-ii which the mei-ei ba hrl is placed. sufiicieiiacieer space is provicied" in. the box to avoid meteiiio em! nection. v Protection against meteiiie eontaet of the band with the box is mecie in any oonvenient manner such as by an insuiating bush m piaoe over the boss f and e sheet of insulation n fitted egeinsu the base of the box. A lug p is formed on eithev: or both of the ciiped and e serew g is in serted through the same int-o the eondensgx; box for completing the security of the egg denser. i i

Petentefi Jone 24f. 1919.

sheets as" sentiei for eegi; sheet i-dproject both efids By constructing and arranging the condenser as above described a rigid and solid mantra of the condenser is obtained which efiectivegy avoids the occurrence of trouble due to high speeds or vibration.

l'n a modification the alternate conducting layers may each be termed from a. single strip which is folded in opposite directions upon itself. Likewise the insulating layers may be formed from a single strip. If desired only one end of each layer may be arranged to project beyond the insulating layers in the construction first described.

Having. thusdescribed my invention what I claim as new and desire to secure by Let ters Patent is:

1. In condensers for ignition magnetos,

- the combination vcomprising alternate conducting and insulating sheets, the alternate conducting sheets projecting beyond the conducting sheets at edges which are at right angles, metal clips embracing a pair of op-. posite edges of the ,conducting and insulating sheets, a metal box formedwith a pair of parallel sides between which said clips are tightly'fitted, a metal band embracing neonate posite edges of the conducting and insulating sheets, a metal box formed with a pair of parallel sides between which said clips are tightly fitted, a metal band embracing the other pair of edges of said sheets, said band consisting of a recessed main part which receives the condenser sheets, a boss formed on the rear side of said part, a front detachable part, screws for securing the front part to the main part, and insulating material between the said band and the box; substantially as described.

3. In condensers for ignition .znagnetos, the combination comprising alternate conducting and insulatingsheets, the alternate conducting sheets projecting beyond the conducting sheets at edges which are at right angles, metal clips embracing a pair or" opposite edges of the conducting and insulating sbeets,-a metal box formed with a pair of parallel sides between which said clips are tightly fitted, a metal, band embracing the other pair of edges of said sheets, said band consisting of a recessed main part which receives the condenser sheets, a. boss formed on the rear side of the said part, a front detachable part, screws for securing the front part to the main part, a metal ter minal strip clamped between the main and detachable parts of said band, and insulating material between the said band and the box, substantially as described.

In testimony whereof I have signed my name to this specification.

ERNEST ANSLEY WATSGN. 

